Lawn Mower Kohler Yard ProXT-7

Kohler Yard Pro XT-7. Front propelled rear bag lawn mower. We bought this four years ago and have used it ~every 10days during mowing seasons for our yard only. We bought a new mower last week. This mower has two issues that we chose not to deal with 1)power drive belt broke and needs replacing. It can still be used without but is more difficult to push. 2) it often takes me several pulls to start. A man might not have this problem. I have all manuals as well as the rear bag which is not currently attached